AutoCodes – Chevrolet – P1249 2016 Chevrolet Silverado

P1249 2016 Chevrolet Silverado Code - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1249 2016 Chevrolet Silverado indicates Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit.
Common causes: Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 429

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Aug 12, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1249 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. The ECM energizes each fuel injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injector high voltage supply circuits and the fuel injector high voltage control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set if the ECM detects the injector high control circuit is shorted to the low control circuit for greater than 2 s.

OBDII Code P1249 2016 Chevrolet Silverado - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit - AutoCodes.com — P1249 2016 Chevrolet Silverado Code - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit

What does this mean?

What are the Possible Causes of the DTC P1249 2016 Chevrolet Silverado?

Faulty Fuel Injector 2
Fuel Injector 2 harness is open or shorted
Fuel Injector 2 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1249 2016 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1249 2016 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1249 2016 Chevrolet Silverado code?

Need more information on how to fix the P1249 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1249 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1249 2016 Chevrolet Silverado Code

1. What does the OBDII code P1249 mean on a 2016 Chevrolet Silverado?

P1249 indicates that the Injector 2 Positive Voltage Control Circuit is shorted to the control circuit, causing improper fuel injection operation.

2. What are the common symptoms of code P1249 in a 2016 Chevrolet Silverado?

Symptoms may include rough idle, engine misfires, reduced fuel efficiency, loss of power, and potential difficulty starting the vehicle.

3. What causes the P1249 code to appear on a 2016 Chevrolet Silverado?

Causes can include damaged wiring, a short circuit between the injector control wires, a faulty injector, or issues with the engine control module (ECM).

4. Can a faulty injector cause code P1249 on a 2016 Chevrolet Silverado?

Yes, a malfunctioning injector can contribute to this code by disrupting the voltage control circuit.

5. How do you diagnose code P1249 on a 2016 Chevrolet Silverado?

Diagnosis involves inspecting the wiring and connectors for Injector 2, testing the injector for proper functionality, and checking the ECM for faults.

6. Is it safe to drive a 2016 Chevrolet Silverado with the P1249 code?

Driving with this code may cause engine performance issues and potentially lead to further damage; itâ€™s best to address the issue promptly.

7. How can you repair code P1249 on a 2016 Chevrolet Silverado?

Repairs may involve fixing or replacing damaged wiring, replacing the faulty injector, or addressing ECM-related issues.

8. Can clearing the P1249 code solve the problem on a 2016 Chevrolet Silverado?

Clearing the code might temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.

9. What tools are needed to troubleshoot code P1249 on a 2016 Chevrolet Silverado?

Common tools include an OBDII scanner, a multimeter for testing electrical circuits, and service manual wiring diagrams.

10. How much does it cost to repair code P1249 on a 2016 Chevrolet Silverado?

Repair costs vary depending on the root cause but may range from $100 to $500 for parts and labor, depending on whether wiring, injectors, or ECM repairs are needed.